JPH0394205A - Optical fiber fitting device - Google Patents
Optical fiber fitting deviceInfo
- Publication number
- JPH0394205A JPH0394205A JP2220938A JP22093890A JPH0394205A JP H0394205 A JPH0394205 A JP H0394205A JP 2220938 A JP2220938 A JP 2220938A JP 22093890 A JP22093890 A JP 22093890A JP H0394205 A JPH0394205 A JP H0394205A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- optical fiber
- container
- insertion pipe
- substrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 27
- 238000003780 insertion Methods 0.000 claims abstract description 20
- 230000037431 insertion Effects 0.000 claims abstract description 20
- 230000003287 optical effect Effects 0.000 claims abstract description 18
- 239000000758 substrate Substances 0.000 claims abstract description 15
- 239000000835 fiber Substances 0.000 abstract description 22
- 238000005476 soldering Methods 0.000 abstract description 5
- 238000003466 welding Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000306 component Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4248—Feed-through connections for the hermetical passage of fibres through a package wall
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4202—Packages, e.g. shape, construction, internal or external details for coupling an active element with fibres without intermediate optical elements, e.g. fibres with plane ends, fibres with shaped ends, bundles
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/4236—Fixing or mounting methods of the aligned elements
- G02B6/4238—Soldering
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/422—Active alignment, i.e. moving the elements in response to the detected degree of coupling or position of the elements
- G02B6/4225—Active alignment, i.e. moving the elements in response to the detected degree of coupling or position of the elements by a direct measurement of the degree of coupling, e.g. the amount of light power coupled to the fibre or the opto-electronic element
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発明は、光ファイバ取り付け装置、特に、容器と、容
器の外部個所に内部の光部品を接続する光ファイバとの
熱膨張率の差を補償する光ファイバ取り付け装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an optical fiber attachment device, and more particularly, to an optical fiber attachment device, in particular, for reducing the difference in coefficient of thermal expansion between a container and an optical fiber connecting an internal optical component to an external location of the container. The present invention relates to a compensating optical fiber attachment device.
［従来の技術及び発明が解決しようとする諜題］レーザ
・ダイオード光源及びフォトダイオード受光器の様な光
ファイバ部品は、少なくとも一部において、光ファイバ
及び容器本体の材料の熱膨張の不整合により、その動作
及び保存温度範囲には制限がある。部品が室温から１０
０”以上まで繰り返し過熱されると、膨張率の不整合に
より、ファイバ及び部品間の位置ずれやファイバの破損
が起きる．これらの現象により、光部品は使用不可能に
なる。第２図に示す様に、レーザ・ダイオード又はフォ
トダイオードの様な光部品は、容器内の基板上に取り付
けられる。光ファイバは光部品と位置決めされ、半田付
け、溶接、接着等により、個所“Ａ ”に取り付けられ
る。ファイバは、引き出し口を介して容器から引き出さ
れ、管内の個所ＩＩ Ｂ ｎで半田付けされる．ファイ
バは金属化され、個所“Ｂ”の半田は、容器に関して密
封シール作用する．ファイバの熱膨張率は、約０．５Ｅ
−６インチ／インチ／” Ｃであり、容器本体は熱膨張
率約６０Ｅ−６インチ／インチ／” Ｃの金属で、通常
は製造される．温度が上昇すると、個所“Ａ ”及び“
Ｂ”間の容器の長さの変化が、ファイバの長さの変化よ
り大きくなる。その結果、ファイバに引っ張り応力が加
わり、個所ＩＩ Ａ Ｉ＋の半田付け接合がその応力に
負け、ファイバ及び光部品間に位置ずれが生じる。ファ
イバの弾性限界を超えると、ファイバは個所′″Ａ １
１及び“Ｂ”間で、切断されることもある。[Prior Art and Problems to be Solved by the Invention] Fiber optic components such as laser diode sources and photodiode receivers are susceptible to problems due, at least in part, to thermal expansion mismatches between the materials of the optical fiber and the container body. , its operating and storage temperature ranges are limited. Parts are at room temperature to 10
When repeatedly heated to temperatures above 0", the mismatch in expansion coefficients causes misalignment between the fiber and components and fiber breakage. These phenomena render the optical component unusable. As shown in Figure 2. Similarly, an optical component, such as a laser diode or a photodiode, is mounted on the substrate inside the container.The optical fiber is positioned with the optical component and attached at point "A" by soldering, welding, gluing, etc. The fiber is withdrawn from the container via the outlet and soldered at point II B n in the tube. The fiber is metallized and the solder at point "B" acts as a hermetic seal with respect to the container. The expansion rate is approximately 0.5E
-6 inches/inch/''C, and the container body is typically fabricated from metal with a coefficient of thermal expansion of about 60E-6 inches/inch/''C. As the temperature increases, locations “A” and “
The change in the length of the container between B'' is greater than the change in the length of the fiber.As a result, tensile stress is applied to the fiber, and the soldered joint at point II A I+ succumbs to the stress, causing the fiber and optical components to succumb to the stress. When the elastic limit of the fiber is exceeded, the fiber moves to the point '''A 1
1 and "B" may be disconnected.
したがって、本発明の目的は、ファイバ及び容器の正常
関係を保つ温度範囲を広げ、ファイバの位置ずれ又は破
損が起きないようにする光ファイバ取り付け装置の提供
にある。SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an optical fiber attachment device that extends the temperature range in which the fiber and container maintain normal relationship and prevents fiber misalignment or breakage.
［課題を解決するための手段及び作用］本発明の光ファ
イバ取り付け装置では、容器本体内の光ファイバ引き出
し部分に挿入管を配置する。挿入管は、容器本体内に延
びて、張架される光ファイバ部分の長さを減少させる．
また、挿入管は、容器本体の熱膨張率よりも大きな熱膨
張率を有する。挿入管の膨張は、光ファイバに対する容
器本体の膨張を補償し、温度が上昇した状態で、引っ張
り応力による歪みの無い状態を形成する。[Means and effects for solving the problems] In the optical fiber attachment device of the present invention, the insertion tube is arranged in the optical fiber extraction portion within the container body. The insertion tube extends into the container body to reduce the length of the optical fiber section that is strung.
Moreover, the insertion tube has a larger coefficient of thermal expansion than the coefficient of thermal expansion of the container body. The expansion of the insertion tube compensates for the expansion of the container body relative to the optical fiber, creating a strain-free condition due to tensile stress at elevated temperatures.
本発明の光ファイバ取り付け装置は、容器と、容器内に
収容され、光部品が取り付けられた基板と、密封して取
り付けられた端部を有して上記容器内に延び、該容器の
熱膨張率より大きい熱膨張率を有する挿入管と、該挿入
管の内部を介して上記容器内に挿入された一端が、上記
光部品と結合するように上記基板に取り付けられ、該挿
入管の上記容器内の端部において．密封して取り付けら
れた光ファイバとを具えることを特徴とする。The optical fiber attachment device of the present invention includes a container, a substrate housed in the container and having an optical component attached thereto, and a substrate extending into the container with a hermetically attached end, the substrate being housed in the container, and extending into the container, the substrate being housed in the container and having an optical component attached thereto. an insertion tube having a coefficient of thermal expansion greater than the coefficient of thermal expansion; one end of the insertion tube inserted into the container through the interior thereof is attached to the substrate so as to be coupled with the optical component; At the inner end. and a hermetically attached optical fiber.
［実施例］
第１図は、本発明による光ファイバ取り付け装置を示す
。容器本体（１０）は、基板（ｌ４）が取り付けられる
台部（１２）を有する。基板（１４）上には、レーザ・
ダイオード又はフォトダイオードの様な光部品（１６）
が取り付けられる。[Example] FIG. 1 shows an optical fiber attachment device according to the present invention. The container body (10) has a base (12) on which the substrate (14) is attached. On the substrate (14), there is a laser
Optical components such as diodes or photodiodes (16)
can be installed.
光ファイバ（１８）は、引き出し口（２０）を介して容
器本体（１０）に挿入され、半田付けの様な適当な方法
により個所“Ａ ”で、基板（ｌ４）に固着される。挿
入管（２２）も、引き出し口（２０）を介して挿入され
、容器本体（１０）の内部に延びる。挿入管（２２）の
外側端部（２４）はフランジ構造になっており、引き出
し口（２０）の外側端部の個所ＩＩ Ｂ ｆｆで、密閉
して固定される。The optical fiber (18) is inserted into the container body (10) through the outlet (20) and fixed to the substrate (14) at location "A" by a suitable method such as soldering. An insertion tube (22) is also inserted through the outlet (20) and extends inside the container body (10). The outer end (24) of the insertion tube (22) has a flange structure and is fixed in a sealed manner at a point II B ff at the outer end of the outlet (20).
ファイバ（ｌ８）は挿入管（２２）内に収納され、半田
付け、溶接、接着等により挿入管（２２）の内側端部（
２８）の個所“Ｃ”で、密封して固着される。The fiber (l8) is housed in the insertion tube (22), and is attached to the inner end (22) by soldering, welding, gluing, etc.
28) is sealed and fixed at point "C".
挿入管（２２）は、容器本体の熱膨張率よりも大きい熱
膨張率を有する金属で製造され、ファイバに対する容器
の膨張を相殺する。機械的要素の実際の長さ及びその熱
膨張率を適当に選択することにより、膨張差分をＯにし
、ファイバ及び取り付け点１１ Ａでの応力をＯにする
ことができる。応力の無い状態は、次の式により表され
る。The insertion tube (22) is made of a metal with a coefficient of thermal expansion greater than that of the vessel body to offset expansion of the vessel relative to the fibers. By appropriate selection of the actual length of the mechanical element and its coefficient of thermal expansion, the differential expansion can be O and the stress at the fiber and attachment point 11A can be O. The stress-free state is expressed by the following equation.
ａｌＸ１１＋ａ２Ｘｌ２＝ａ３Ｘ１３
ここで、ａｎは各要素の熱膨張率であり、ｉｎはその各
要素の長さである．第２図に示す様に、１１は熱膨張率
ａ１のファイバ（ｌ８）が張架された個所Ａ及びＣの長
さであり、１２は熱膨張率ａ２の挿入管（２２）の個所
Ｂ及びＣ間の長さであり、ｌ３は熱膨張率ａ３の容器本
体（１０）の個所Ａ及びＢ間の長さである。この結果、
ファイバを取り付けた光容器は、応力によるファイバ及
び光部品間の位置ずれ又はファイバの機械的故障が生じ
ることなく、広い温度範囲にわたり使用を繰返すことが
できる。この効果は、引き出し口の密封構造を維持しつ
つ、実現される。alX11+a2Xl2=a3X13 Here, an is the coefficient of thermal expansion of each element, and in is the length of each element. As shown in FIG. 2, 11 is the length of the portions A and C where the fiber (l8) with the coefficient of thermal expansion a1 is stretched, and 12 is the length of the portions B and C of the insertion tube (22) with the coefficient of thermal expansion a2. 13 is the length between points A and B of the container body (10) with a coefficient of thermal expansion a3. As a result,
The fiber-attached optical envelope can be used repeatedly over a wide temperature range without stress-induced misalignment between the fiber and optical components or mechanical failure of the fiber. This effect is achieved while maintaining the sealed structure of the drawer opening.
〔効果］
上述の様に、本発明は、密封シール容器内で、光ファイ
バを光部品に結合するための光ファイバ取り付け装置で
ある。この取り付け装置は、容器本体の熱膨張率より大
きい熱膨張率を有し、光ファイバ及び容器本体間の熱膨
張率の差を補償する。[Effects] As described above, the present invention is an optical fiber attachment device for coupling an optical fiber to an optical component within a hermetically sealed container. The attachment device has a coefficient of thermal expansion that is greater than the coefficient of thermal expansion of the container body and compensates for the difference in coefficient of thermal expansion between the optical fiber and the container body.
これにより、結合点において、ファイバの引っ張り応力
による歪みをＯにすることができる。Thereby, the strain due to the tensile stress of the fiber can be reduced to 0 at the bonding point.
第１図は本発明による光ファイバ取り付け装置を示す断
面図、第２図は光ファイバ及び光部品を結合する従来の
機械構造を示す断面図である。
図中において、 （１０）は容器、 （ｉ４）は基板、
（ｌ６）は光部品、 （ｌ８）は光ファイバ、（２２
）は挿入管である。FIG. 1 is a sectional view showing an optical fiber attachment device according to the present invention, and FIG. 2 is a sectional view showing a conventional mechanical structure for coupling an optical fiber and an optical component. In the figure, (10) is a container, (i4) is a substrate,
(l6) is an optical component, (l8) is an optical fiber, (22)
) is the insertion tube.
Claims (1)
、該容器の熱膨張率より大きい熱膨張率を有する挿入管
と、 該挿入管の内部を介して上記容器内に挿入された一端が
、上記光部品と結合するように上記基板に取り付けられ
、該挿入管の上記容器内の端部において、密封して取り
付けられた光ファイバとを具えることを特徴とする光フ
ァイバ取り付け装置。[Scope of Claims] A container; a substrate housed in the container and having an optical component attached thereto; a substrate having a hermetically attached end extending into the container and having a coefficient of thermal expansion greater than the coefficient of thermal expansion of the container; an insertion tube having a large coefficient of thermal expansion; one end of the insertion tube inserted into the container through the interior thereof is attached to the substrate so as to couple with the optical component; 1. An optical fiber attachment device comprising: an optical fiber hermetically attached at an end.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/397,209 US4936646A (en) | 1989-08-23 | 1989-08-23 | Temperature-compliant tube for fiber optic components |
| US397209 | 1989-08-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0394205A true JPH0394205A (en) | 1991-04-19 |
Family
ID=23570266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2220938A Pending JPH0394205A (en) | 1989-08-23 | 1990-08-22 | Optical fiber fitting device |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4936646A (en) |
| EP (1) | EP0414338A3 (en) |
| JP (1) | JPH0394205A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015200746A (en) * | 2014-04-07 | 2015-11-12 | 日本電信電話株式会社 | Optical module |
| JP2017040703A (en) * | 2015-08-18 | 2017-02-23 | 株式会社フジクラ | Optical module and optical module receptacle |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5399902A (en) * | 1993-03-04 | 1995-03-21 | International Business Machines Corporation | Semiconductor chip packaging structure including a ground plane |
| US5692086A (en) * | 1995-10-25 | 1997-11-25 | The Boeing Company | Optical fiber locking submount and hermetic feedthrough assembly |
| US5914972A (en) * | 1997-03-24 | 1999-06-22 | Sdl, Inc. | Thermal compensators for waveguide DBR laser sources |
| CA2357242A1 (en) * | 2001-02-22 | 2002-08-22 | Teraxion Inc. | Adjustable athermal package for optical fiber devices |
| US6679636B1 (en) | 2001-06-29 | 2004-01-20 | Network Elements, Inc. | Method and apparatus for maintaining alignment of a laser diode with an optical fiber |
| GB2377276A (en) * | 2001-06-29 | 2003-01-08 | Bookham Technology Plc | Reinforcing the fibre when mounting an optical fibre cable to an optical device |
| US6771859B2 (en) | 2001-07-24 | 2004-08-03 | 3M Innovative Properties Company | Self-aligning optical micro-mechanical device package |
| US6798954B2 (en) | 2001-07-24 | 2004-09-28 | 3M Innovative Properties Company | Packaged optical micro-mechanical device |
| US6834154B2 (en) | 2001-07-24 | 2004-12-21 | 3M Innovative Properties Co. | Tooling fixture for packaged optical micro-mechanical devices |
| JP4615414B2 (en) * | 2005-09-30 | 2011-01-19 | 住友電工デバイス・イノベーション株式会社 | Optical module |
| WO2008113015A1 (en) | 2007-03-14 | 2008-09-18 | Entegris, Inc. | System and method for non-intrusive thermal monitor |
| US11125936B2 (en) | 2019-02-26 | 2021-09-21 | The Government Of The United States Of America, As Represented By The Secretary Of The Navy | Thermal insulator for fiber optic components |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4119363A (en) * | 1976-03-18 | 1978-10-10 | Bell Telephone Laboratories Incorporated | Package for optical devices including optical fiber-to-metal hermetic seal |
| US4413881A (en) * | 1979-07-26 | 1983-11-08 | Northern Telecom Limited | Optical fiber hermetic seal |
| US4695125A (en) * | 1981-02-11 | 1987-09-22 | Northern Telecom Limited | Hermetic optical attenuator |
| JPS57164583A (en) * | 1981-04-02 | 1982-10-09 | Toshiba Corp | Self temperature compensating luminous device |
| GB2124402B (en) * | 1982-07-27 | 1986-01-22 | Standard Telephones Cables Ltd | Injection laser packages |
| US4615031A (en) * | 1982-07-27 | 1986-09-30 | International Standard Electric Corporation | Injection laser packages |
| JPS6043889A (en) * | 1983-08-22 | 1985-03-08 | Hitachi Ltd | Light-emitting device |
| FR2584827B1 (en) * | 1985-07-09 | 1987-09-25 | Comp Generale Electricite | DEVICE FOR COUPLING AN OPTICAL FIBER TO AN OPTOELECTRONIC COMPONENT |
| US4802178A (en) * | 1986-04-10 | 1989-01-31 | Ortel Corporation | High speed fiberoptic laser module |
| US4803361A (en) * | 1986-05-26 | 1989-02-07 | Hitachi, Ltd. | Photoelectric device with optical fiber and laser emitting chip |
| FR2623297B1 (en) * | 1987-11-13 | 1991-09-27 | Cit Alcatel | COUPLING DEVICE BETWEEN AN OPTICAL FIBER AND AN OPTOELECTRONIC COMPONENT |
| US4865410A (en) * | 1988-01-25 | 1989-09-12 | E. I. Du Pont De Nemours And Company | Decoupled fiber optic feedthrough assembly |
-
1989
- 1989-08-23 US US07/397,209 patent/US4936646A/en not_active Expired - Lifetime
-
1990
- 1990-04-27 EP EP19900304627 patent/EP0414338A3/en not_active Withdrawn
- 1990-08-22 JP JP2220938A patent/JPH0394205A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015200746A (en) * | 2014-04-07 | 2015-11-12 | 日本電信電話株式会社 | Optical module |
| JP2017040703A (en) * | 2015-08-18 | 2017-02-23 | 株式会社フジクラ | Optical module and optical module receptacle |
Also Published As
| Publication number | Publication date |
|---|---|
| US4936646A (en) | 1990-06-26 |
| EP0414338A3 (en) | 1991-10-09 |
| EP0414338A2 (en) | 1991-02-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0394205A (en) | Optical fiber fitting device | |
| US5452389A (en) | Semiconductor element module | |
| US4865410A (en) | Decoupled fiber optic feedthrough assembly | |
| US4548466A (en) | Optical fibre coupling assemblies | |
| EP0690322B1 (en) | Hermetically sealed optical fiber insert assembly | |
| EP0484167B1 (en) | Laser diode module with pigtail fiber | |
| EP0053020A2 (en) | Light-activated semiconductor device | |
| EP2339385B1 (en) | Hermetic seal between a package and an optical fiber | |
| JPH05127050A (en) | Semiconductor laser module | |
| JPS6123379A (en) | Optoelectronic apparatus | |
| EP0608895B1 (en) | Airtight seal structure of low melting point glass to be used in optical fiber guiding portion of optical device and method of airtight seal using low melting point glass | |
| JPH10274724A (en) | Method of packaging optical parts and method of assembling collimator | |
| JP4167378B2 (en) | Optical element module | |
| JPH0763957A (en) | Hermetic sealing structure of optical fiber introducing part | |
| US6470111B2 (en) | Fiber optic switch package and a method of assembling a fiber optic switch package | |
| JP2800760B2 (en) | Optical semiconductor module | |
| US6621949B2 (en) | Fiber optic switch package and a method of assembling a fiber optic switch package having an inverted ring structure | |
| EP1298471A1 (en) | Apparatus for coupling optical elements in an optical module | |
| JPS62130582A (en) | Semiconductor laser module | |
| JPH04204405A (en) | Semiconductor optical coupling device | |
| JPS61194413A (en) | Photoelectronic device | |
| JP2005265900A (en) | Semiconductor device module | |
| JPH04168402A (en) | Optical semiconductor module | |
| JPH01271713A (en) | Photoelectronic device | |
| JP2001091786A (en) | Airtight optical fiber coupler |